Here they are: Jennifer Lopez' twins, Max and Emme, born February 22. J-Lo seems to have timed their debut to take the wind out of Halle's sails!

And the Latina singer is preparing to shed the baby weight and get back into fighting form right away. She's reportedly flown her personal trainer, Gunnar Peterson, from LA to New York to whip her back in to shape.

A source close to Peterson tells the National Enquirer:"She wants to lost the baby weight fast. She wants to trim at least 20 to 25 pounds right away. She put on almost 40 pounds when she was pregnant with the twins.

The trainer-to-the-stars is reportedly putting Lopez through an hour and a half of high-cardio workouts each day.  

Oh, the pressures of stardom!

PEOPLE, National Enquirer]